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Details
| Specification | Value |
|---|---|
| Brand | ERNST |
| Category | catalyst converter |
| Fitting Position | Centre |
| Length [mm] | 1210 mm |
OE/OEM numbers (3)
Search by this OE number to find compatible parts
- VAG—1K0 254 400 PX
- VAG—1K0 254 400 RX
- VAG—4A0 131 737 A
Where this part fits
Original-fit position for OE 4A0131737A. The red ring marks where this part installs on the vehicle.
About this product
Sourced from ERNST, this catalyst converter (759014) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Fitting Position: M, Length [mm]: 1210 mm, Emission Standard: 67, Vehicle Equipment: 91, Supplementary Article/Info 2: 977 — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Verified to fit AUDI, VW models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 04.3055, 090-557, 1K0 254 400 PX, 1K0 254 400 RX and 10 more. Matching these numbers confirms a like-for-like replacement with no loss of function. ERNST is a recognised supplier of automotive replacement components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
Suitable cars
Equivalent products (11)
catalyst converter ERNST 759014 — compatible car models
| Car models | AUDI: A3 (8P1), A3 Sportback (8PA); VW: GOLF V (1K1), TOURAN (1T1, 1T2) |
|---|---|
| Engines | 1.6 FSI |
| Year of manufacture | 2003-2015 |
| Manufacturer article number (MPN) | 759014 |
| OE part numbers | 1K0 254 400 PX, 1K0 254 400 RX, 4A0 131 737 A |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
ERNST 759014 Set. Emission Standard: 67. Fitting Position: M. Guarantee: 6. Length [mm]: 1210 mm. Supplementary Article/Info 2: 977. Vehicle Equipment: 91
- 1x catalyst converter
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this catalyst converter compatible with my car?
This catalyst converter fits AUDI, VW vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this ERNST catalyst converter have?
This ERNST catalyst converter has the following specifications: Fitting Position: M; Length [mm]: 1210 mm; Emission Standard: 67; Vehicle Equipment: 91; Supplementary Article/Info 2: 977; Guarantee: 6. Check the full specifications table above for complete details.
What OE part numbers does this catalyst converter replace?
This catalyst converter replaces OE part numbers: 1K0 254 400 PX, 1K0 254 400 RX, 4A0 131 737 A. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a catalyst converter cost?
Catalyst converter prices vary depending on brand, specifications, and vehicle compatibility. Check the current price above for this ERNST catalyst converter. All parts come with our 14-day money-back guarantee.
How do I know when to replace my catalyst converter?
Regular inspection of your catalyst converter is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a catalyst converter?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the catalyst converter fitted by a professional mechanic.
Can I use this part as a replacement for OE 1K0 254 400 PX?
Yes, this ERNST catalyst converter is a direct replacement for OE part number 1K0 254 400 PX. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
